Improvement in map-cabinets



2 Sheets-Sheet 1.

.G. H. GRANT. Map-Cabinet.

Patented Nov. 11, I879.

N. PEI'ERS. PHOTOMTHOGRAPMER, WASHINGTON, D C.

2 Sheets-Sheet2. G. H. GRANT.

Mapflabinet. No. 221 550, Patented Nov. 11,1879.

Inventor: /v v N, PETERS, FHOTO-LITHOGRAPNER. WASHINGTON. D c

UNITED STATES PATENT OFFIGE?\ GEORGE E. GRANT, OF RICHMOND, INDIANA,ASSIGNOR OF ONE-HALF OF HIS RIGHT TO AAROL W. HEMPLEMAN, OF SAME PLACE.

IMPROVEMENT IN MAP-CABINETS.

Specification forming part of Letters Patent No. 221,550, dated November11, 1879; application filed March 18, 1879.

To all whom it may concern:

Be it known that I, GEORGE H. GRANT, of Richmond, in the county of Wayneand State of Indiana, have invented certain new and useful Improvementsin Map-Cabinets; and I do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same,referencebein g had to the accompanyin g drawings, and to letters ofreference marked thereon, which form a part of this specification, inwhich- Figure 1 represents a front elevation of a map cabinet orreceptacle to which my improvements have been applied. Fig. 2 representsa vertical section of the same as taken through the linewar of Fig. 1.Fig. 3 represents a vertical section of a modified form of my improvedmap-cabinet, and Fig. 4 another modification of the same.

My invention relates to that class of appliances the object of which isto protect, display, or exhibit for i use, examination, criticism, orexplanation maps, charts, drawings, engravings,chromos, anatomicalplates, plats, diagrams, samples of wall papers, windowshades, or otherarticles usually rolled for protection and u'nrolled for exhibition.

My invention consists, first, in providing the upper and lower ends ofmaps, charts, drawings, &c., with a counterpoise-weight, and thensuspending it over a loose friction roller or rollers arranged in acabinet or receptacle, whereby said map, chart, 860., can be drawn outor pushed back into the ease or adjusted to hang at any requiredposition for inspection or examination; secondly, in combining two ormore counterpoised maps, drawings, &c., with a cabinet or receptacleprovided with one or more seriesof rollers, so arranged and constructedwith respect to each other that each and every Ina-p, drawing, 850.,arranged thereon can be exhibited for inspection independently andwithout interference or displacementof the others of the series;thirdly, in combining with two or inorezmaps, drawings, &c., whose endsare provided with counterpoises,'a cabinet having V or L shapedbrackets, for a purpose to be hereinafter described; fourthly, in acabinet for the exhibition of maps, charts, drawings, &c., a compartmentarranged at its lower end for the reception and protection of globes,models, &c.; fifthly, a map-exhibitor having a projecting hood forprotecting the maps and drawings from dustand other matter; and,sixthly, the combination of a map-exhibitor with a blackboard providedwith a shelf or elongated bracket for the reception of the crayons.

Referring to the drawings, in which the same letters of referenceindicate the same parts, A represents a box or cabinet, provided atthetop on its front side with a projecting hood, B. To the face of theinner opposite sides of the cabinet A and hood B are arranged andsecured two V or L shaped brackets, G (3, one on each side, into whichare journaled a series of rollers, over and upon which the maps orcharts pass and are suspended.

Along the lower converging lines, a and b, of the brackets 0 O areformed the bearings for the rollers D, D D, 1) D and D D At or about thelower angle of the brackets O are formed the bearings for the underroller, D, of lthB above series of rollers, and which supports andsuspends the lowest map or drawing, I, intended for exhibition. This mapor drawing is counterpoised by weighted strips 0 0, one at each end, sothat the chart will remain, when adjusted, in any position desired, andslide readily over the roller D into the cabinet when the strip a iselevated, thus protecting it from dust, moisture, sudden changes oftemperature, 850.

It is obvious that other methods of counterbalancing may be used insteadof the strips or rods 0 c employed in the illustration of myinventionas, for instance, simple weights of suitable gravity andsize-in which case each end of the map should be provided with asuitable stop or stops to prevent it from slipping off the roller. Forthis purpose, if only one map or chart is used in the case or receptacleA, the roller D should be arranged sufficiently near to the cover B ofthe case to prevent such accident. As a rule, however,

more than one map, chart, or other drawing will be arranged in the caseA. The plan I prefer for this purpose is shown in Figs. 1 and 2, inwhich a cabinet having four maps is illustrated. In this form a V-shapedbracket is employed to form the bearings for the rollers that supportthe maps. In this case or cabinet, 1 represents the lower or inner map,mounted or suspended upon a single roller, 1), and K the next lower map,mounted upon two rollers, D D, these being so arranged with respect tothe roller D as to allow map K to slide freely up and down withoutinterfering with map I. Lrepresents the next lowest map, supported orsuspended from the two rollers 1) D and which are so arranged as toallow map L to slide freely up and down without interfering with maps Kand I below. 0 represents the next or uppermost map, supported orsuspended from two rollers, 1) D, so arranged as to allow map() to slidefreely up and down without interfering with the others, and that as wellon the inside as outside of the receptacle. Each of these maps, it willbe seen, is provided at each end with a metal or wooden strip, the outerstrip being marked 0 and the inner one 0. These strips extend all theway across the ends of the maps and project a little beyond at each end,as shown in Fig. 1, so as to bear against the edges of the V-shapedbrackets (J, thereby preventing the maps or other drawings attached fromslipping oli' their supporting-rollers. These strips are made of suchweight as to keep the ends of the maps to which they are attached on thestretch, and yet sufliciently heavy to prevent the greater length of themap on one side from moving or dragging it from the other, with the viewof making the map remain in any position in which it is placed. Thesestrips may be made of any suitable shape; but I prefer to make themround.

The cabinet thus constructed, any of the maps contained therein may bedrawn out for examination by simply taking hold of the strip 0 of therequired chart and pulling on it until all or as much of it is exposedas required. Strip cis then detached from the hand, and will hold themap in that position as long as may be desired. When done with that map,it is pushed in by raising strip 0, which, through strip 0 on the otherend, will cause the map to descend on the inner side of the cabinet.

In Fig. 2, K represents one of the maps drawn out for inspection, whilemaps 0, L, and I are shown inclosed in the case-that is to say, in theposition they are intended to occupy when not in use-their outer strips,0, bearing against the outer edge, b, of the V- shaped brackets C, whichserves to prevent them from slipping off their respectivesupporting-rollers.

To the inner ends of the maps pieces of cloth f, or paper, are attachedto lengthen them, as otherwise the maps could not be used in thismanner. In this style of map-cabinet the case A is provided with acover, which projects over and for some short distance beyond the upperfront end of the V-shaped brackets O, that support the rollers, andforms a hood, B, to protect the maps, charts, or other articles fromdust, 810.

On the lower part of the front side of this case A is arranged ablackboard, M, which, when the maps are not on exhibition, forms anexcellent board for map-drawing or making mathematical calculations,diagrams, 8w. At the lower edge of this board M is arranged a shelf. N,for holding chalks,'crayons, &c.

Immediately below shelf N is a door, P, hinged at its lower end to thebottom Q of the cabinet A, so as to open outwardly and downwardly, asindicated in dotted lines in Fig. 2. To the under side of the bottom Qtwo or more slide-bars are properly secured, so that when drawn out theywill form a support for the door P when lowered down; or,insteadot'drawbars, two or more pivotal bars, at, may he secured. This is theform shown in the drawings, Fig. 2.

Door P, when lowered and supported by bars m, forms a table, on whichglobes, philosophical and other apparatus, &c., may be supported whilebeing exhibited or explained to pupils and others, after which they canbe placed back into the cabinet on bottom board Q, and the door P thenclosed and latched or locked, as may be desired, and bars m pushed backin place under the bottom board of the cabinet.

In Fig. 3 is represented a modification of my improvement. In thisfigure the inner rollers, D D I), are arranged in a horizontal plane,while their corresponding rollers may be either arranged in a verticalor an inclined plane, as in Fig. 2. In the drawings they are arranged inthe latter way. In either case they will be mounted in brackets G, ofsuitable size and corresponding shape.

In Fig.4 is shown another modification. In this modification the maps,charts, &c., are suspended on single rollers arranged, one above theother in a vertical plane, there being one roller for each map or chart.These rollers may be of the same size; but I prefer to make themsuccessively larger the one than the other, as shown in that figure, thelargest being the uppermost, and the one immediately below the nextlargest, and so on down through the whole series. By this plan thedifi'erent maps will hang free and independent of each other, and willnot interfere with each other as they are pushed in or drawn out of thecase. These rollers D D D D are all mounted in suitable bearings inV-shaped brackets O, which, as in Figs. 2 and 3, serve to arrest therods or strips csecured to the ends of each map, in order to preventthem slipping ofl' their respective rollers.

The cases A of the modifications shown in Figs. 3 and 4 may, if desired,be provided with blackboards, crayon-shelves, and with a door at theirlower ends, in the same manner and for the same purposes as thesedevices are used in the cabinet-case A of Figs. 1 and 2.

In all the cabinet or case may be supported -on suitable legs, orsecurely hung or suspended from the wall of the room; and in the sameconnection it may be stated that these maps, cabinets, or cases may bemade of any required size or capacity, so as to suspend any requirednumber of maps, charts, &c.

In Fig. 5 is represented still another modification. In thismodification the rollers .are all arranged on the inside of the casingand in a horizontal plane.

The operation is apparent, and need not be particularly described. Thecasing is suspended by a pivotal hook from a bracket 011 the wall orfrom the ceiling. By this plan the maps can be mounted, back to back,upon the ends of the cloth strips f, so that four maps or charts may besuspended for'exhibition from each of the rollers in the casing. In thismodiiication all maps or charts on the front side of each of the webs fcanbe examined or exhibited without turning the case; then the remaindercan also be exhibited by simply turning the case round on itsswivel-hook and operating each in turn.

The case may bea simple inclosed box, having a door at bottom andanother in front, the former to close the case when not in use, and thelatter for use in mounting the maps on their respective rollers. Thesedoors may be secured in any suitable way.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. A map, chart, &c., provided with a counterpoise rod or strip at eachend, in combination with a roller and inclosing-case, substantially asset forth.

2. Two or more maps, charts, 860., each having counterpoise rods orstrips, in combination with a cabinet or case provided with one or morerollers for each, in the manner substantially as set forth.

3. In' combination with a cabinet or case provided with two or morerollers on which to suspend maps, charts, 860., carrying acounterpoise-rod at each end, two inwardly-projecting brackets, 0,arranged on the opposite sides of the case, for the support of therollers, and to prevent the maps, 850., from slipping over the latter,substantially as set forth.

4. A cabinet or case for the exhibition of maps, charts, 850., providedwith a blackboard, arranged in the manner substantially as set 'forth.

5. In combination with a map, chart, &c., provided with counterpoiserods or strips, a lengthening-strip, f, for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

GEORGE H. GRANT.

' Witnesses:

A. W. HEMPLEMAN, CHARLES F. GRANT.

